Renewable-seat valve.



Patented Apr. 10, I900.

E. H. LUNKEN. RENEWABLE SEAT V ALVE,

(Application filed. Dec 1899.)

(No Model.)

In ventor 'Witn eases.

m: cams PETERS co murno" WASHINGTON. l1 0,

7 parallel with the plane of the seat; and it has v u yr STTES PATENTOFFICE.

EDMUND H. LUNKEN, OF DENVER, COLORADO, ASSIGNOR TO THE LUNKEN- HEIMERCOMPANY, OFQCINOINNATI, OHIO.

RENEWABLE-SEAT VALVE.

SPECIFICATION forming part of Letters Patent No. 647,192, dated April10, 1900.

Application filed December 4, 1899. $erial No. 739,185. (No model.) i iof which the following is a full, clear, and

exact description, reference being had to the accompanying drawings,forming part of this specification.

My invention relates to. that class of valves among which may beenumerated globe- I valves, check-valves, inthe form of globe and anglevalves, and, in short, an that class of valves having an inlet-openin g,a pipe-opening, and an interposed-valve-seat opening, with a valve-seatcovered by a valve that moves to and from its seat always in planes forits object the provision of a removable and renewable seat for thisclass of valves which can be readily applied and removed without troubleor loss of time and without disconnecting the valve from itspipe-fittings, thereby greatly increasing the efficiency of the valveand prolonging its life.

The novelty of my invention will be hereinafter set forth, andspecifically pointed out in the claims.

In the accompanying drawings, Figure l is an axial side elevation of somuch of a globevalve as is necessary to illustrate my invention. Fig. 2isa transverse elevation of the body of the valve on the dotted line anoof Fig. 1. Fig. 3 is a plan View of Fig. 2. Fig. 4 is a sectional sideelevation of so much of an angle-valve as is necessary to show theapplication of my invention. Fig. 5 is a central sectional elevationthrough the neck of the valve,showing a modification wherein the bonnetor cap is interiorly threaded to screw upon the exteriorly-threaded neckof the valve. Fig. 6 is a central sectional side elevation of acheck-valve in globe form embodying my invention. Fig. 7 is a sectionalelevation of the neck in detail to show more clearly one of therecessesin the threaded part of the neck, into which one of the arms for thering-seat is seated deeply enough so as to not interfere with thethreads of the bonnet or part thereof which screws into said valve andits securing-arms in one piece.

Fig. 10 is a view at; right anglesto Fig. 9, showing the securing-armsattached toa ring and with the ring-seat beneath the .same as a separatedetachable piece.

The same letters of reference are nsedto indicate'identical parts in allof the figures.

In Figs. 1 .and 2, which representan ordinary globe-valve or so, lnuohlthereof as is necessary toillustrate my invention, A represents thebody, with opposite pipe-openings a b to form inlet andoutlet openingsfor the valve. Within the body between these open ings (t l) is theusual diaphragm c, having through it an opening containing the valveseatD, with which the valve 0 (represented by dotted lines) engages and ismoved to and from the valve-seat to close and open the valve by theusual or any suitable stem f passing through and engaging with a cap orbonnet B, screwed to the neck 0 of the valve.

So far the construction described is that of any ordinary globe-valve,and I will now pro- .ceed to describe the application of myinven- -tionthereto.

Loosely fitted within the valve-opening in the diaphragm c is aremovable ring-seat D, with an exterior rabbet or cut-out portion g tofit the opening in the diaphragm and with an upper interior beveledportion h to form the valve-seat with which the correspondinglybeveledlower portion of the valve 6 engages. In one of its forms the ring-seatD has integral with it two or more upwardly-projecting arms E, which arefitted into and are guided by recesses "6, Figs. 3 and 7, in the neck ofthe valve, whether the same be threaded or not, and which arms extend upfar enough to be engaged by the flange of the cap or bonnet B of thevalve, so that when the latter is screwed down to place it engagest'hetops of the arms E and forces same downward to cause the ring-seat D tosnugly adhere to the opening in the diaphragm of the valve to preventleakage. These arms E may be nicked or corrugated, as atj, Figs. 2 and9, so as to be longitudinally compressible and thus be in a measureelastic when the cap or bonnet is screwed down. As a substitute forthese nicks or corrugations the upper ends of the arms may beperforated, as seen at Ya, Fig. 10, to enable-the longitudinal yieldingor compression of the arms andv also to serve as a means for introducinga hook or other tool by which the arms and ring-seat or ring carried bythe arms can be withdrawn from the valve-body to enable a new ring-seatto be applied, as will be readily understood.

As seen in Figs. 1 and 2, thering-seat and armsmay be integral, and, asseen in Fig. 10, they may be detachable with an upper ring Z, carried bythe arms E, fitting upon a rabbeted portion of the ring-seat D justoutside of its seat h, 'as'shown particularly in Fig. 10.

In Fig. 4 the invention is shown as applied to an angle-valve ofwell-known form-of construction, and wherein the ring-seat and arms maybe integral or separate, as in the globe form above described.

Again,'in Fig. 6, I have shown a well-known form'ofcheck-valve to whichmy invention is 'applied',the cap or bonnet being indicated by'dottedlines and only the'us'ual guidewings for the valve beingemployed.

In Fig. 8 I have shown a form of cap or bonnet having aninwardly-projecting screwplug m,which bears upon and forces down thetops of the arms E, and in Fig. 5 I have shown the bonnet B as having athreaded flange engaging the outer side of the neck 0, inwhich casetlie'arms E extend far enough u pto be engaged by the inner projectinglower side'of the capor bonnet.

- I have thusshown the application of my invention in a variety of waysto a variety of forms of valves, but do not intend that the same shallbe limited thereto nor that my claimsfin terms,should beconfined to thesame, as the leading features of my inventionare the location of theremovable valve-seat with reference to the valve which engages it, thearms that hold said seat to its placein the seat-opening of the valvewhether the armsare integral with the valve-seat or are attached to anintermediate ring that engages the seat; also, in so guiding the armsand in supporting them inthe neck of the valve in recesses that notorsion or twisting is exerted upon them in securin g thecap or bonnetin place and whereby'the valve-seat will always be seated true and willremain so under all circu mstances,the whole forming a very simple andefficient means of applying renewable seats to this class of valves,which will render them perfectly efficient in action and will greatlyprolong their life and utility..

As-another valuable feature of my invention it is to be observed thatneither the size of the valve body or shell or its neck is in the leastincreased or enlarged nor is the opening or passage-way through thevalve in the least restricted, owing to the fact that the arms that holdthe renewable valve-seat are at one side and do not in any way obstructthe passage of the valve, so that my invention is applicable to thestandard sizes of the valves now on the market, to which it can beapplied in a very simple and cheap manner. Also, while I have shownforms of valves where the caps or bonnets are screwed to the neck, yetit is well known in the art, particularly in the construction of ironvalves, that these caps or bonnets are sometimes flanged and secured byconnecting bolts. Even in such cases my invention isperfectly applicableto these latter forms of valves and will be found very desirable intheirfuse,

It will be seen from the foregoing that the two principal features of myinvention are, first, to provide a holder for the renewable seat thatdoes not in any way obstruct' the passage-way of the valve, and hencethetwo arms are arranged at the opposite sides of the shell out of thepassage-way of the valve, and, second, to provide means to preventanyturningor displacement of. the arms, espe cially on account of thescrewing down of the cap or bonnet. It 'is evident that any suitablestops for that purpose'wonld answer justa's well, and I therefore, donotwish'to be confined to any, particular way, of preventing thearmsfrom turning. i

' Having thus fullydescribed my invention, I claim 1. In valveconstruction, in whichthe valve moves to and from its seat inconstantly-pan allel planes, the combination of the" body having inletand outlet openings and an interposed-seat opening, a ring-seat fittedto said last-named opening,'apair of arms, arranged opposite to oneanother on opposite sides of the passage-way, adapted to hold saidringseat in place, means for preventing said arms from turning inposition, and the valve which engages with thering-seat, substantiallyas described.

2. In valve construction in which the valve moves to and from its seatin constantly-parallel planes, the combination of the body having inletand outlet openings and an interposed-seat opening, a ring-seat fittedto said last-named opening, a two-armed non-revoluble holder for'thering-seat forced into place by contact with the cap of the valve, andthe valve which engages with the ring-seat, substantially as described;

3. In valve construction in which the valve moves to and from its seatin constantly-parallel planes, the combination of the body havinginlet'and outlet openings and an-interposed-seat opening, a ring-seatfitted to said last-named opening, two arms holding the ring-seat inplace, means for preventing the arms from turning while the cap is beingscrewed down, and the valve which engages with the ring-seat,substantially as described.

4. In valve construction in which the valve moves to and from its seatin constantly-parallel planes, the combination of the body having inletand outlet openings and an interposed-seat. opening, a ring-seat fittedto said last-named opening, two arms for holding the ring-seat in placeand arranged opposite to each other at the sides of the body so as notto obstruct the passage-way through the same, a device for preventingthe arms from turning out of position, and the operating-stem carryingthe valve which engages with the ringseat, substantially as described.

5. In valve construction in which the valve moves to and from its seatin constantly-parallel planes, the combination of the body having inletand outlet openings and an interposed-seat opening, a ring-seat fittedto said last-named opening, a plurality of arms held in guides in theneck of the valve and adapted to hold said ring-seat in place, and thevalve which engages With the ring-seat, substantially as described.

6. In valve construction in which the valve moves to and from its seatin constantly-parallel planes, the combination of the body having inletand outlet openings and an interposed-seat opening, a ring-seat fittedto said last-named opening, a pluralityof arms held and guided inrecesses in the neck of the valve and adapted to hold said ring-seat inplace, and the valve which engages with the ring-seat, substantially asdescribed.

7. In valve construction having the operating-stem at right angles tothe plane of the valve and its seat, the combination of the bodyhaving'inlet and outlet openings and an interposed-seat opening, aring-seat fitted to said last-named opening, a plurality of arms held inguides in the neck of the valve and adapted to hold said ring-seat inplace, and the operating-stem carrying the valve which engages with thering-seat, substantially as described.

8. In valve construction in which the valve moves to and from its seatin constantly-parallel planes, the combination of the body having inletand outlet openings and an interposed-seat opening, a ring-seat fittedto said last-named opening, a separate ring engaging the ring-seat andcarried by arms held in guides in the neck of the valve and adapted tohold said ring and ring-seat in place, and the valve which engages withthe ring-seat, substantially as described.

9. In valve construction in which the valve moves to and from its seatin constantly-parallel planes, the combination of the body having inletand outlet openings and an interposed-seat opening, a ring-seat fittedto said last-named opening, a plurality of arms held in guides in theneck of the valve and provided with nicks or corrugations to permittheir longitudinal compression and adapted to hold said ring-seat inplace-and the valve which engages with the ring-seat, substantially asdescribed.

10. In valve construction in which the valve moves to and from its seatin constantly-parallel planes, the combination of the body hav-' inginlet and outlet openings and an interposed-seat opening, a ring-seatfitted to said last-named opening, a plurality of arms held in guides inthe neck of the valve and provided with apertures, said arms beingadapted to hold said ring-seat in place, and the valve which engageswith the ring-seat, substan' tially as described.

11. In valve construction of the character described, the combination ofthe removable valve-seat, arms supported and held from turning by slotsin the neck of the valve and serving to hold the valve-seat to itsplace, a plug or cap engaging the neck of the valve and the upper endsof the seat-arms to hold the same down, substantially as described.

12. In valve construction of the character described, the combination ofthe removable valve-seat, arms recessed in the threaded neck a of thevalve and serving to hold the valve seat to its place, a plug or capengaging the threaded neck of the valve and the upper ends of theseat-arms to hold the same down, and, a valve for the valve-seat,substantially as described. I 13. In valve construction in which thevalve moves to and from its seat in constantly-par allel planes, thecombination of the body hav ing inlet and outlet openings and an inter=posed-seat opening, a ring-seat fitted to said last-named opening, aplurality of armsheld and guided in recesses in the threaded portion ofthe neck of the valve, said recesses being sufficiently deep to receivethe arms without interfering with the action of the thread in the neck,and said arms adapted to hold said ring-seat in place, and the valvewhich engages with the ring-seat, substantially as described.

EDMUND I-I. LUNKEN.

IIO

